I also decided to skip the FM Transmitters because if you live in or near a city or large population then you will get a lot of static since most of the radio stations will be used. I decided to upgrade my car's audio unit instead.

If a person just wants to connect their iPhone/iPods without all the fancy features then they can get the cheapest audio unit which is relatively affordable at under $100. Professional installation prices can also be reasonable at places like Best Buy. The music sound quality will be so much better than an FM transmitter so I think it's worth it.